Resistance of superconducting nanowires connected to normal-metal leads
Resistance of superconducting nanowires connected to normal-metal leads
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DOI：
10.1103/physrevb.69.220503
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发表时间：
2004-06-01
影响因子：
3.7
通讯作者：
Klapwijk, TM
中科院分区：
文献类型：
--
作者：
Boogaard, GR;Verbruggen, AH;Klapwijk, TM
我们从实验上研究了超导纳米线与正常金属池连接时的低温电阻。我们发现，很大一部分纳米线是电阻的，直到测量到的最低温度，这表明由于正常电流到超导电流的安德烈夫转换而产生的本征边界电阻。用扩散超导体的动力学方程成功地分析了结果。
We study experimentally the low temperature resistance of superconducting nanowires connected to normal metal reservoirs. We find that a substantial fraction of the nanowires is resistive, down to the lowest temperature measured, indicative of an intrinsic boundary resistance due to the Andreev-conversion of normal current to supercurrent. The results are successfully analyzed in terms of the kinetic equations for diffusive superconductors.